Wolfgang turnwald



W. TURNWALD.

VALVE.

APPLICATION FILED MAR.10.|911.

1,332,582. .Patented Mar, 2,1920.

2 SHEETS-SHEET l.

WI TURNWALD.

VALVE.

APPLICATION FILED MAR. I0. |911.

JIU/entor ormey.

'UNITED STATES PATENT OFFICE.

WOLFGANG TURNWALD, OF SYRACUSE, NEW YORK, ASSIGNOR TO STUMPF UNA-FLOW ENGINE COMPANY, A CORPORATION OF NEW YORK.

VALVE.

Specification of Letters Patent.

Patented Mar. 2, 1920.

Application filed March 10, 1917. Serial No. 153,859.

To all 'whom it may concern:

Be it lrnown that I, WOLFGANG TURN- wALD, a sub'ect of the Emperor of Austria, residin at yracuse, in the county of Onon daga, tate of New York, have invented a new and useful Improvement in Valves, of which the following is a specification.

My invention relates to improvements 1n valves. The object is tol provide a valve having a safety element adaptedr to give a greater opening with normal lift of the valve mechanism. l

The invention comprises two elements, each having a face coperating with a fixed seat and each having a face coperatmg with a face of the other, and means whereby the elements are actuated to separate from the said seats and from each other.

The invention also comprises improvements in arrangement and construction.

Referrin to the drawings, which illustrate mere y by way of example suitable means for the embodiment of my invention Figure 1 is a vertical section of a triple beat puppet valve embodying Amy improvement. K

Fig. 2 is a fragmentary sectional view showing the upper elementk 7 in open position.

Fig. 3 is a vertical section showing modiiications.

Fi 4 is a fragmentary sectional view showing all the elements in the open position.

Fig. 5 is a sectional plan view of the device shown inl Fig. 3; the section taken on line 5, 5 of Fig. 6.

6, 6 of Fig. 5.

Fig. 7 1s a fragmentary view in sectlon showing faces 12 and 134 separated while faces 10 and 11 are in contact with each other. l f

'Similar numerals refer to similar parts throughout the several views.

Referring to Fig. 1, the valve comprises the two elements 6 and 7. Element 6 comprises a formation having a contact face 8 at its lower edge coperating with the stationary valve seat 9, and a contact face 10 at its upper edge, coperating with `and forming a valve seat for the contact face 11 enlargement, as at' 17, adapted to engage,I

upon its upward movement, with the underside of `sleeve 15. Sleeve 16 is adapted to receive the valve spindle 18, havin the head 19 at its lower end. Above the s eeve 16 is provided the housing 20 also fittedy on thev spindle 18. Within this housing 2() is provided the spring 21 adapted to engage the shoulder 22 of element 7. This housing 20 is held in position by means of the nut 22 threaded on the spindle 18 and maintains the spring 21 under the desired tension. This housing 20 and nut 22a also serve to maintain the spindle 18 in fixed engagement with the sleeve 16. n

When used as a steam valve for engine cylinders, it will be understood that the lspindle is operated in the usual way, as for example, by means of a cam, actuated in connection with the operation of the engine,

yto open and close said valve.

By the upward movement of spindle 18,

element 6 is raised, causing a separation of faces 8 and 9; and at the same time `causing an upward movement of element 7 and a separation of faces 12 and 13. Fig. 6 is a vertical cross-section on line When the valve is closed however, in case of water in the cylinder, or a very high compression, due to the breaking of the vacuum in a condensing engine, the upper element 7 acts as a sa ety valve. That is to say, either faces 12 and 13 will separate due to the resilience of web 14, or element 7 will compress the spring 21 and lift ofi the two seats 10 and 13 as in Fig. 2, and thereby prevent pressure in the cylinder'from eXceeding that of the boiler, except by a slight amount due to the spring, thev weight of the valve and the rslight differencein areas.

Referring to Fig. 3, the element 6 yis provided with a sleeve 23 having a vertical movement on the stationary stud 211. Sleeve 23 engages at its upper end with the head 25 of spindle 18. This sleeve 23. isslotted, as at 26, to accommodate the levers 27, which are pivoted at 28 to the stationary post 29 projecting upwardly from stud 24. These levers 27 are provided with the elbows 30 which engage with the lower margins 31 ot the slots 26 of sleeve 23.

Operation.

It will thus be seen that when the valve element 6 is lifted by means of spindle 18, the levers 27 will be actuated to force the element 7 upwardly a distance approximately twice that of the movement of ele- 'ment G, as indicated in Fig. 4. That is to say, when the main valve 6 is lifted by the valve stem 18, the surfaces 31 of sleeve 23 actuate the levers 27. This causes the outer free ends of these levers, which engage the under side of element 7, to raise the flexible or safety valve element 7 higher than the main valve lifts. Upon such actuation we have a ow between faces 8 and 9, between 10 and 11 and between 12 and 13; or in other words, we have a triple beat valvey in place of the usual double beat valve.

As the opening between 12 and 13 will be practically twice as much as the opening between 8 and 9, while the opening between 10 and 11 will be approximately the same as between S and 9, we really get about twice the opening in this valve, with the same size valve and the saine lift of valve of the ordinary double beat type.

While the auxiliary or safety valve 7 lifts higher than the element 6, it requires no higher cam to lift it, and the valve being so light, the inertia force added to its extra lift is comparatively slight.

It will be obvious that the levers 27 form only one example of a number of means whereby the element 7 may be given a greater movement than the ele-ment 6. It will also be understood that by varyingthe proportions or dimensions of the levers the ratio may be increased or diminished.

What I claim is 1. A main valve element and a relatively movable auxiliary valve element, each having a face cooperating with a fixed seat and each having a face coo erating with a face of the other element, anc means for causing a separation between the cooperating faces of said element, and a separation of the auxiliary element from its fixed seat greater than the separation of the main valve element from its fixed seat.

2. A main valve element and a relatively movable auxiliary valve element, each having a face cooperating with a fixed seat and each having aface cooperating with a face of the other element, and means for causing a separation of the face of the auxiliary element from its fixed seat substantially greater than the separation of the face of the main element from its cooperating fixed seat.

3. A triple beat valve comprising two movable elements, each having a face c0- oper-ating with a fixed seat, and each having a face cooperating with a face of the other element, means for actuating one ele- 4ment, means for communicating movement 0f one element to the other, and resilient means adapted normally to hold the faces of one element` in closed position when the valve is closed, but to permit movement of one or both of said faces upon occurrence of abnormal conditions.

4. A valve comprising two movable elements, each having a face cooperating with a fixed seat and each having a face coperatf ing with a face of the other, means for actuating one element and means whereby the said element aotuates the other a distance substantially greater than that of itsown movement. 'i

5. A valve comprising two movable elements, each having a face cooperating with a fixed seat and each having a face cooperating with a face of the other, means for actuating one element and means for communicating the movement of said element to the other so that said elements will separate from their seats and from each other.

6. A valve comprising two movable elements, each having a face cooperating with a fixed seat and each having a face cooperat ing with a face of the other, means for actuating one element and a pivoted lever as means for communicating the movement of said element to the other so that said ele ments will separate from their seats and from each other.

7. A valve comprising two movable elements, each having a face cooperating with a fixed seat and each having a face cooperating with and separable from a face of the other, means for actuating one element and means for communicating the movement of said element to the other so that one element shall have a greater movement than the other and said elements shall separate from their seats and from each other.

8. A valve comprising two movable elements, each havinga` face cooperating with a fixed seat and cach having a face cooperatin with and separable from a face of the ot er, one of said elements having its two contacting faces in substantially the same plane.

9. A valve comprising two movable elements, each having a face cooperating with a fixed seat and each having a face cooperating with and separable from a face of the other, one of said elements having its two contacting faces concentric and in substantially the saine plane. e

10. A valve comprising two movable elements, each havinga face coperating with a fixed seat and each having a face coperatfxed seat and each having 1a face coperatin with and separable from a face of the in with and separable from a face of the oter, one of said elements having its two 10 ot er, one of said elements having its two contacting faces re'siliently connected and in 5 contacting faces resiliently connected. substantially the same plane.

11. A valve comprising two movable elements, each having a face copelating with a WOLFGANG TURNWALD. 

